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    • 92. 发明授权
    • Memory management system and method for GPU-based volume rendering
    • 基于GPU的体绘制的内存管理系统和方法
    • US07911474B2
    • 2011-03-22
    • US11679990
    • 2007-02-28
    • Wei LiGianluca Paladini
    • Wei LiGianluca Paladini
    • G06F13/00
    • G06T1/60G06F11/34G06F12/0875G06F12/0897G06F12/126G06F12/128G06F2212/1016G06F2212/455
    • A memory manager interfaces between a rendering application and the driver controlling one or more memories. A multi-level brick cache system caches bricks in a memory hierarchy to accelerate the rendering. One example memory hierarchy may include system memory, AGP memory, and graphics memory. The memory manager allows control of brick overwriting based on current or past rendering. Since different memories are typically available, one or more memory managers may control storage of bricks into different memories to optimize rendering. Management of different memory levels, overwriting based on current or previous rendering, and an interfacing memory manager may each be used alone or in any possible combination.
    • 存储器管理器在渲染应用程序和控制一个或多个存储器的驱动器之间进行接口。 多级砖缓存系统将砖块缓存在存储器层次结构中以加速渲染。 一个示例性存储器层级可以包括系统存储器,AGP存储器和图形存储器。 内存管理器允许基于当前或过去的渲染控制砖覆盖。 由于不同的存储器通常可用,一个或多个存储器管理器可以将砖的存储控制到不同的存储器中以优化渲染。 不同存储器级别的管理,基于当前或先前的渲染的重写以及接口存储器管理器可以单独使用或以任何可能的组合使用。
    • 93. 发明授权
    • Progressive refinement for texture-based volume rendering
    • 基于纹理的体绘制的渐进细化
    • US07843452B2
    • 2010-11-30
    • US11755256
    • 2007-05-30
    • Wei Li
    • Wei Li
    • G06T17/00
    • G06T15/08
    • A method for rendering a two-dimensional image comprising: (a) obtaining a first three-dimensional set of data for a relatively high quality image; (b) generating a second three-dimensional set of data for a relatively low quality image from the obtained three-dimensional set of data; (c) rendering a relatively low quality two-dimensional image from second three-dimensional set of data; (d) rendering a first portion of a relatively high quality two-dimensional image from a first portion of the first three-dimensional set of data; (e) blending the rendered low quality two-dimensional image with relatively high quality two-dimensional image; (f) rendering a second portion of a relatively high quality two-dimensional image from a different portion of the first three-dimensional set of data; and (g) blending the rendered low quality two-dimensional image from second three-dimensional set of data with relatively high quality two-dimensional image from the second portion of the first three-dimensional set of data. The process repeats until the entire image is rendered.
    • 一种用于渲染二维图像的方法,包括:(a)获得用于较高质量图像的第一三维数据集; (b)从所获得的三维数据集合生成相对低质量图像的第二三维数据集; (c)从第二三维数据集合呈现相对低质量的二维图像; (d)从第一三维数据集的第一部分渲染相对高质量的二维图像的第一部分; (e)将所渲染的低质量二维图像与相对高质量的二维图像进行混合; (f)从第一三维数据集的不同部分渲染相对高质量的二维图像的第二部分; 以及(g)从所述第一三维数据集的第二部分将来自第二三维数据集的所提供的低质量二维图像与相对高质量的二维图像进行混合。 该过程重复,直到整个图像呈现。